Method for inhibiting corrosion of metal

(19)

(11)

EP 1 598 445 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	28.06.2006 Bulletin 2006/26

(43)	Date of publication A2:
	23.11.2005 Bulletin 2005/47

(21)	Application number: 04017268.6

(22)	Date of filing: 22.07.2004

(51)

International Patent Classification (IPC):

C23F 13/00^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL HR LT LV MK

(30)

Priority:

17.05.2004 US 846598

(71)	Applicant: Canadian Auto Preservation Inc.
	Concord, Ontario L4K 2W4 (CA)

(72)	Inventor:
	Lewis, Michael E. Hartville, Ohio 44632 (US)

(74)	Representative: Wagner, Jutta et al
	Patentanwälte Zellentin & Partner GbR, Rubensstrasse 30 67061 Ludwigshafen/Rhein 67061 Ludwigshafen/Rhein (DE)

(54)	Method for inhibiting corrosion of metal

(57) The present invention generally provides a method for prevention of corrosion in a metal object by inducing a surface current over the entire surface of the metal object. The surface current can be induced by direct or indirect application of electrical waveforms having AC components generated from a circuit. The metal body and the negative terminal of a source of DC voltage (battery) are grounded. The positive terminal of the source of DC voltage is connected to the electronic circuit that imparts electrical waveforms of low voltage DC to the conductive terminal connected to the metal body. Alternate methods of inducing surface currents include direct capacitor discharge through the metal body, or movement of an electromagnetic field over the metal body, or by generating an RF signal attached to a transmitting antenna such that the transmitted signal is received by the metal body.

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